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Science and Math For Adults?

Peter Trepan writes "Like most Americans, I made it through high-school and college without a thorough understanding of major scientific and mathematical concepts. I'm trying to remedy this situation both for personal betterment and so I can supplement my *own* kids' education. The problem is, most textbooks are not designed to convey an understanding of the subject, but to squeeze in all the 'facts' required by state law. I'm looking for books that don't just tell me an equation or a concept works, but also explain *why*. Would you please list books that have helped you gain a greater understanding of the basic concepts of algebra, chemistry, calculus, physics, and other core areas of science?" This is similar to an earlier question, but with a broader focus.

29 of 489 comments (clear)

  1. books... by Yodason · · Score: 5, Informative

    Feynman has 6 easy/not so easy peices on physics... I enjoyed those. On A whole I will recomend any of his books... Math I'm not sure... I'd like to try and find a math book (that teaches you as much as a text book) thats not as dry as one... For calculus for the easy stuff Learn Calculus the easy way is a interesting concept, its taught through a story.

    1. Re:books... by bmwm3nut · · Score: 4, Informative

      6 easy pieces is cut from the full "feynman lectures on physics." this is a great series of books. unfortunately they're quite expensive, but they are lectures that feynman gave to an incoming group of physics majors at cal tech, so they start of very basic. if you're looking to get just a basic understanding of physics and a little chemistry and biology thrown in for fun, try reading volume 1 of the lectures. volumes 2 and 3, while great references for physists are probably not great if you're just trying to understand concepts. but if you have the money, there's no reason not to buy the whole set. and as the parent said, all of feynman's books are great (beware, some of them are high level graduate level books). i also recommend the feynman lectures on computing.

    2. Re:books... by MuParadigm · · Score: 5, Informative

      I like the Feynman books as well, but I'd start with "Surely, You're Joking Mr. Feyman" first. The reason I say that, especially if you want to share them with your kids - I'm assuming they're about adolescent in age - is that I find it's easier to develop an understanding in these subjects by hearing stories in them first, then moving on to more theory-oriented works.

      For math, I'd recommend:

      G. H. Hardy - A Mathemetician's Apology
      E. T. Bell - Men of Mathematics (some people have problems with this book in terms of historical accuracy, but I'v always found it a lot of fun)
      Courant & Robbins - What is Mathematics? (nice grounding in general theory)
      Nagel & Newman - Godel's Proof
      Georg Cantor - Transfinite Numbers
      Alan Turing - On the Computable Numbers (fantastic essay, don't know where you can find it though)
      J. E. Thompson - Algebra / Calculus for the Practical Man
      Silvanus Thompson & Martin Gardner - Calculus Made Easy

      For physics:

      Feynman - QED (Quantum Electrodynamics)/ The Character of Physical Law
      Galileo - Two New Sciences (Much more readable than you'd think)
      Fermi - Thermodynamics / Elementary Particles (these might be a little too technical)
      Brian Greene - The Elegant Universe
      Einstein - Relativity / The Principle of Relativity / The Meaning of Relativity / The Theory Of Brownian Movemnent

      Highly Unrecommended:

      The Tao of Physics - Fritjof Capra
      The Dancing Wu-Li Masters - Gary Zukav

      I cannot emphasize enough how lousy these last two books are. I can't understand why they are still in print. Atrocious new age speculation.

    3. Re:books... by cybermace5 · · Score: 4, Insightful

      I just wanted to reply concerning the cost issue. If you find something you think will work, and can learn easily from it, it's worth the price. You'd be surprised what a good foundation of scientific principles can do for you, at work and at home.

      It's not only the facts you know about things; those give you the ability to carry on a discussion with a specialist in any given field. It's also the process of discovery and fact-checking. Every time you work a problem, or follow the progression of a historical great discovery, you teach yourself how to apply your natural curiosity in a productive way. Invaluable.

      --
      ...
  2. math: by Pandora's+Vox · · Score: 5, Informative

    zero, the biography of a dangerous idea by charles seife (sp?)

    the god particle, by leon lederman

    the particle garden, by someone whose name i can't remember.

    good math and good physics. enjoy!

    -Leigh

  3. Hawking by endquotedotcom · · Score: 4, Informative

    Stephen Hawking's "Universe in a Nutshell" is a good start on physics and relativity. I've never taken any physics and was able to understand it fairly well.

  4. Calculus Made Easy by DarkVein · · Score: 5, Informative

    Calculus Made Easy by Silvanus P. Thompson and Martin Gardner. This is exactly the sort of book you're looking for, in the subject of Calculus. To quote from the preface, on the subject of modern math textbooks: Their exercises have, as one mathematician recently put it, "the dignity of solving crossword puzzles." The purpose of this book is to explain the philosophy of Calculus, and teach you how to differentiate and integrate simple functions. I recommend reading the Preface in a bookstore, skimming the first few chapters. I think you'll like it.

    --

    I'm as mimsy as the next borogove but your mome raths are completely outgrabe.

  5. Infinity by rf0 · · Score: 4, Informative

    One article that I found interesting A Guide to Infinity

    Rus

  6. Isaac Asimov by Esion+Modnar · · Score: 5, Informative

    Any of his non-fiction books, and there's a ton. All subjects, from algebra to the brain to chemistry. (He even wrote about the Bible...)

    --

    They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
  7. ArsDigita University by Anonymous Coward · · Score: 5, Informative

    You might check out some of the materials on display at ArsDigita University, they have lectures online and a critique of each course, together with a list of texts...personally, Sispser's text for Theory of Computation was very helpful in explaining a lot of the higher-level CS Math.

  8. Math texts by plalonde2 · · Score: 4, Insightful
    Math texts rarely manage to give insight into what's going on at a level sufficient to solve problems. The reason is that it's hard to get the insight until you understand the mechanics, and hard to want to get the mechanics without an understand - a nasty education catch-22.

    The solution that most math texts take then is to give you *lots* of problems/drills so that the mechanics get ingrained, allowing the insight to come later.

    When I screwed up my second year calculus course *really* badly (like 6% on the midterm...) I used a Schaum's Outline to get back on track (and eventually ace the final). It's main benefit is *heaps* of problems to work through. That made me a convert to the problems approach to math teaching.

    The key is to do all the problems, in order.

    That said, I can't really recommend one math text over another, just so long as there are lots of problems, and hopefully a solution key in the back for at least half the excercises.

    1. Re:Math texts by Monkelectric · · Score: 3, Interesting
      I can't speak to high school, but at my university courses like calculus, physics and chemistry were "flunk courses". Courses designed to fail a maximum number of students. The professors had *NO* interest in making the subject interesting or accessable. As a whole the university (UCR) had a graduation rate of 60%, whereas the engineering college had an horrific graduation rate of 30%.

      There are several reasons for wanting to fail students, the most frequently mentioned is that theres "not enough room" in the upper courses. But the real reason is they are simply elitist bastards, they figure, "I had to go through it, you do to." The worst abuse I ever saw was a chemistry course I was in. 250 Students, the teacher spent the entire quarter lecturing about the heart medicine he was working on, and how steel refineries worked (his other interest). No problem -- if the tests are on heart medicines and steel production, but, he gave standardized tests and flunked 90% of the class.

      Flunk courses also create some strange strange acedemic relationships. For instance, I was getting 15s and 16s (out of 100) on my physics tests and, with the curve I was getting a nice fat C. The problem with this is two fold ... It sounds great right? get a 15 and get a C? First problem, I'm not getting the education I paid for. Secondly, it encourages cheating because all you have to do is "beat the curve". The thrid and most intriguing problem deserves its own paragraph.

      For me to get a C with 15 out of 100 points. That means, about HALF of the students scored worse then me. The students who scored WORSE then me *financed* my C by getting D's and F's. If they weren't the cannon fodder, *I* would have failed the course. Now here's where things get tricky. Sometimes, you are the sacrifical lamb, and sometimes you are the priest. If you are the lamb, you take the course over -- but this time you're the priest because you've taken the course before and it's finally starting to make sense. So the first timers are competing on a curve with people who have taken the course before. This wouldn't be a problem with a normal distribution of scores, but with poor instruction causing scores to center around 15%, that advantadge *REALLY* counts.

      So now that I've written a diseratation here, what I really mean is, in your post you assume that mathbooks are even designed to help students, when most of the time, they aren't.

      --

      Religion is a gateway psychosis. -- Dave Foley

    2. Re:Math texts by drlock · · Score: 3, Insightful

      The reason is that it's hard to get the insight until you understand the mechanics

      I agree, I just finished 3 years of college level Calculus and Differential Equations. I found that I didn't really get Calc I until I was in Calc II and it didn't all come together until Calc III. Grade wise I did great in all three, but the 'why' of it all took a while to build. The more you use/practice it the more you will begin to connect the concepts and really understand.

      All that said, don't be discouraged from trying. I think a lot of learning comes down to your approach and attitude. When I study math I am constantly looking for 'how does this apply in the real world' and 'how does this fit with the math rules I know'. <rabit trail>The second is really important, there is a very exact framework of math laws, if you know the laws and can apply them, then you can hang everything you learn on that framework and it will make sense. Another tip: when the teacher is doing a proof don't space out, instead try and think ahead and predict where the teacher/author is going next with the proof.</rabit trail>. I sat through lectures and had everything make sense, but had friends come out of the same lecture and be totally lost. It is because they are looking to just pass, not to really dig in and understand.

      Now, as far as books go, the only ones I really know are the textbooks I have used. If you are looking for algebra try Saxon math (These text books are very popular with home schoolers, and for good reason). After a couple years with Saxon (Algebra 1/2, Algebra I, and Algebra II) I moved on to advanced high school math with text books published by University of Chicago. I thought both Saxon and U. of C. were good. I can't really recommend my college level text books. They are not too good, almost all I have learned I got from lecture. <rabit trail> People learn different, if you learn well from lectures it might be best for you to look for night classes at a community college. On the other hand, you may learn better from reading, in which case the classes would be a waste of time</rabit trail>

      Whatever you decide, best of luck to you, and remember, take the bull by the horns and CHOSE to enjoy it. No matter how good the book / teacher is, whether you learn or not really comes down to how you choose to approach it.

  9. For mathematics highly recommend 2 books by dydxjessedydt · · Score: 3, Informative

    "Foudations of Mathematics" by Denbow and Goedicke (old, but an amazing book for the understanding of most math concepts) "Mathematical Sorcery" by Clawson (More of a "evolution of modern math concepts")

  10. Suggestions for Math and Physics by CBNobi · · Score: 4, Informative

    There are "for Dummies" books that cover many of the topics you've listed. I was never fond of them, but you may want to take a look at them.

    The biggest problem when you're undertaking a self-study endeavour is that most books that are available are either
    - Very specialized topics (What does pi mean?)
    - Refresher-course books (Lots of problems, few explanations)

    The specialized topics books - commonly reviewed in magazines such as Scientific American - are fun to read, but I'm not sure if they serve the purpose of what you're seeking.

    How much of algebra do you know? If you can look through the table of contents of a textbook for Algebra I and II and are confident in all the topics, then I'd move on to geometry/trigonometry before calculus.

    Also, keep in mind that conceptual physics texts are divided between algebra-based and calculus-based reasoning. Take whichever you're more comfortable with.

    Some 'refresher-course' books that will come in handy with the conceptual books that others may suggest:
    Schaum's Outlines
    Research & Education Association's Problem Solvers series
    CliffsNotes and SparkNotes

  11. textbooks are references, not teachers by SuperBanana · · Score: 3, Insightful
    The problem is, most textbooks are not designed to convey an understanding of the subject, but to squeeze in all the 'facts' required by state law.

    The problem is, most textbooks are designed to be companion references, with all the 'facts' squeezed in so the teacher can spend time helping everyone understand the concepts etc. The two work together.

    Simple answer is, you need to take adult education classes. I left college barely half-way through, and ended up taking night classes- intro to calculus was one; another was an intensive Economics class. I found them worthwhile; I probably would have enjoyed the class more if I wasn't young enough to be most of the other student's kid(you would fit in FAR better, from the sounds of it.)

    Without the classes, you don't get the benefits of peer learning, in-class interaction("Did everybody get that?" [blank stares] "Heh, ok, let me explain it a different way...") the discipline that testing creates, nor the resource of having a Really Smart Person(professor) to go to when you need help. There are also other benefits- making friends(you're probably all in similar 'boats' so to speak, so people socialize pretty readily), and networking. My old boss decided to do part-time classes for an MBA, and got a lot of networking out of it(granted, those were business classes, more prone to networking activities, but you get the idea).

  12. I learned plentyfrom my teachers... by erroneus · · Score: 4, Insightful

    ...and very little from the books.

    I suppose it depends on the type of learner you are, but frankly, I imagine seeing and using the information being delivered to me. Rather than simply "knowing" the things I learned, I understood them and used what I learned to add more peices to the puzzle I call "reality."

    In more simple terms, everything you (should have) learned should be assimilated into the way you operate within your environment. Ever heard "you use it or you lose it"? There's a lot of truth to that.

    Rather than try to get what you missed from books, perhaps it's time to make a much more grand display by going back to school. It doesn't have to be thought of as "remedial" but rather as a "brush-up" or simply continuing education. If you show your children that learning only ends when you die, their minds will be open for life with the expectation that they can grow and improve themselves at any point in their lives... not just during the beginning phases. By the time they reach it, "middle aged" will be 50-something anyway.

    Best advice? Go back to school and pay attention this time.

  13. My High School Math Program (IMP) by Not+Quite+Jake · · Score: 3, Interesting

    The math program I was a part of in high school, at Whitney Young Magnet School in Chicago, was called IMP, or Integrated Mathematics program but it could have just as easily stood for Interactive Mathematics Program.
    Basically the way it was structured was that instead of the traditional math program where one learns algebra the first year, geometry the second, trig the third and then moves onto precal, we learned a litte bit of each every year.
    Furthermore, instead of them just shoving facts down our throat and saying here, memorize these (such as all the proofs from traditional geometry) we were actually guided along in discovering them for ourselves.
    Every problem was given to us in word problem format. Each unit, which represented a major concept such as the quadratic equation or some of that other stuff, was presented as one big word problemm and it was broken up into smaller pieces which slowly led up to the solution of the actual problem.
    So instead of coming out of it with simply memorizing the quadratic equation, pythagorean theorem, pi, geometric proofs and the like, we were actually able to discover these on our own.

    It's just too bad the teachers weren't all that great and the program didn't much fit into the "flash/bang" you need to know this information right now that most high school classes are based around. God forbid students actually understand and can apply the information they are learning.
    I also can't seem to recall who published the books we used but I'm sure a bit of googling can solve that.

  14. Godel Escher Bach - An Eternal Golden Braid by Cordath · · Score: 4, Informative

    Douglas Hofstadter won a pulitzer for this little gem. This is a fantastic book to read for anyone remotely interested in the mathematical principles behind some of the more glamorous aspects of computing. Hofstadter's "Achilles & the Tortoise" dialogues are a frequently hilarious tribute to Lewis Carol that remain some of my most favorite things in print.

    If you're lacking a basic understanding of algebra then this book may be a tad over your head, but if you can get into it you will find it immensely rewarding.

    P.S. Algebra? ALGEBRA?!!?? You made it through college without algebra?

  15. I disagree. by bgalehouse · · Score: 4, Informative
    I could never do that. I need the explanation of why and always have. Quite frankly, I can't be bothered to learn facts without understanding. Furthermore, I claim that this need to understand relationships is absolutly key to being a scientist or mathematician.

    Real math involves proofs. In fact, for mathematicians that is the definition of mathematics. The rest is "just" application. Since the original poster is complaining about the lack of explanation why, I suggest that he look into proofs and other creative aspects of real mathmatics. If you haven't learned that math is a creative art you haven't learned jack. Ok, so I'm opinionated, but this is slashdot and what else is new.

    Anyway I suggest that anybody of any age interested in math check out equations and wff-n-proof from the wff-n-proof people.

    Regarding books, he had a vague request so I'll make some vague suggestions. Springer Verlag publishes lots of great mathbooks, as well as quite a few not so great. Some of them I can even read, and they do have a some series and books advertised for undergraduates. Look for yellow in any self respecting University library or technical bookstore.

    Actually, going through a university library or bookstore is probably the best advice I can give under the teach a man to fish philosophy. Learning to go through a stack and pick out books that are readable but challenging is basically the secret to scholarhood. That and faith in the fact that once you've ground through one the rest will be a smidgen easier.

    Oh, and you can also check out the math section of Cononical Tomes I made a few contributions when it first started, and would assume that it has only grown.

  16. Learn How To Prove Things! by kramer2718 · · Score: 4, Insightful

    On the topic of calculus, don't learn anything past calculus I (well, bits of calculus II are useful). The rest is completely useless and you'll forget about it all in a couple of years anyway because of its uselessness. If you want something that's useful go for discrete math and/or the good bits of linear algebra. Your comment is completely offbase. Actually, Linear Algebra is about as important as Calculus in many scientific/engineering disciplines.

    More importantly, you claim that anything more advanced will be forgotten, but the later courses often serve to reinforce earlier material. For example a course on Fourrier theory reinforces both Linear Algebra and Calculus.

    Most math departments have a course somewhere after the introductory sequence which teaches basic proof techniques often by studying the definition of numerical systems from logical axioms.

    These basic proof techniques are the very basis of mathematics. The reason so many people get through high school with little understanding of math is that they are never forced to do any proofs outside of Geometry.

    In short, if you cannot prove anything, you know practically nothing about mathematics.

  17. COMMUNITY college is not about education. by HanzoSan · · Score: 3, Interesting


    People go to community college to transfer into a good university and get cheap credits, not get an education.

    If they wanted me to focus on an education perhaps they wouldnt make the GPA so damn important.

    What is the point of avoiding difficult but important classes simply to preserve your GPA? Are you in school to get an education or to simply achieve some arbitrary GPA? I've been in the position of hiring people for technical positions and I've always been far more impressed by a mediocre GPA in a substantial curriculum then a high GPA in an easy curriculum.


    Ok say I do take a few math classes and get a few Cs, well then my GPA goes under 3.0 and I can forget about transfering into a good 4 year university, I can also forget about scholarships and grants which also require a high GPA of above 3.0 or 3.5, I really cannot afford any Cs and I know for a fact that its simply impossible for me to get an A or B in math. I take classes which I know I can/will get an A or B in.

    This isnt about the jobs, this is about getting a degree from an elite private university.

    I recently returned to school myself, so I do have sympathy with amount of work required to do really well in a course, and I do understand that those planning to continue to a four year school or go on to graduate school need to match minimum requirements, but in my opinion you'll be better served by reducing the number of classes you take in a given term then by trying to ditch the challenging courses.

    I never take more than 4 classes per semester, and I never get anything below a B in grades, those are the rules I follow.

    Maybe if universities werent so strict and competitive on the GPA issue I could actually focus on learning but right now I have a goal, that goal is to get into Harvard, Tufts, Boston College,Boston University or North Eastern, all which are ELITE private universities which will NOT let you in with a sub 3.0 GPA, you most likely wont get in with a sub 3.5 GPA, so no its not about "learning" right now, its about moving up the ladder, it will be about learning once I get into university, thats when I'll take math clases, get a C or two, and learn something.

    --
    If you use Linux, please help development of Autopac
  18. I'll second that, and I'm an engineer by John+Jorsett · · Score: 4, Interesting

    I confess that I made it through 3 semesters of college calculus and an engineering degree pretty much not understanding the underlying concepts of calculus. It's surprising what you can accomplish by rote. This book was a real forehead-slapper for me, and I can't recommend it highly enough. Many years after graduating, I've finally learned what I should have back then. If it were up to me, this would be the first book anyone learning calculus ever read. I wish Sylvanus Thompson were still alive (I think Calculus Made Easy was published in 1919) so I could give him a big smooch.

  19. Totally on the mark by ebuck · · Score: 4, Insightful

    Calculus is INCREDIBLY important, and from a philosopical point of view it might even be dangerous. :)

    Imagine a field of mathematics that explicitly has at it's underpinnings the hypothesis that as you break up a line into smaller segments, eventually if you make each segment have no length, they still all add up to a lenght.

    Philosopy aside, it's an INCREDIBLE tool for particular applications. Need the area of a sphere, no problem. A cone, still no problem. An oddly shaped object that looks like a art-deco running shoe? BIG problem, that is unless you use calculus.

    1. Re:Totally on the mark by Joey7F · · Score: 3, Interesting

      Area of a sphere? 4 pi r ^2...no calculus needed ;-)

      Of course a (an astute) calculus student would notice that when you derive the volume formula for a sphere (4/3 pi r^3) with respect to the radius you get the area.

      My dad is an engineer (I will be too soon...hopefully ) and he has a novel way of find an oddly shaped area.

      As long as what you are looking at has a scale of some kind you can actually cut out that area and weigh it on a (sensitive) scale. Then cut out a known square dimension from the same paper. Now you know what that area is relative to a certain weight...well now finding the original area just takes a little knowledge of proportions.

      Granted it is not exactly going to score any points in the rigorous category, but it will get the answer with uncanny accuracy, which is the only category engineers have anyway :-P ::silence::

      Yeah I am lucky they don't have -1 geek as a moderation...

      --Joey

  20. Helpful basic physics books by MindNumbingOblivion · · Score: 3, Informative

    Physics: The Human Adventure, Gerald Holton and Stephen Brush
    Nice, historical look at how well known physical concepts of today were discovered.
    Physics for Scientists and Engineers, Paul Fishbane and Stephen Gasiorowicz

    First few chapters good if you have a basic knowledge of calculus. For the later chapters (ie, Electricity and Magnetism, basic quantum mechanics) good idea to have a calculus book handy, I reccomend
    Calculus: Early Transcendentals, James Stewart
    First chapter is a good review of algebra, precalculus, and analytical geometry. Through chapter 7, fairly straightforward. Chapter on sequences and series is kind of fuzzy, though it mostly makes sense.
    Hope this helps!

    --
    #define CLUE 0
  21. A Tour of the Calculus by cquark · · Score: 3, Informative

    For a literate and entertaining look at the concepts of calculus, I highly recommend David Berlinski's A Tour of the Calculus. It won't teach you how to solve problems, but it will teach you the concepts behind limits, differentiation, and integration along with the important theorems and their proofs.

  22. Calculus Made Easy by Sylvanus Thompson by BigBlockMopar · · Score: 3, Interesting

    The best piece of advice I can give anyone trying to learn from a textbook is to tell them to work through the problems. Anyone should be able to pick up many of the textbooks listed below and work though as many of the problems as time allows (limited either by patience or by real life events). Most textbooks provide answers to selected problems, so you can check your progress.

    Absolutely, 100%. Nobody is born with the ability to take a triple scalar product or multiply two matrices (both happening in your video card when you're playing Doom!). As a great Calculus teacher once announced to his class through a thick French Canadian accent, "Math is not a spectator sport." (Actually, it came out as "Matt ees not a spectator sport.")

    Having said that, Calculus is my favorite kind of math. It's incredibly elegant and probably the most useful advanced math, as it touches everything you do. Consider your car. If you calculate your speed using a watch and the odometer, you have an idea how fast you were going, but your speedometer is actually showing you the value of the derivative at any instantaneous time. Your speedometer shows the rate of change of position (distance travelled) at any instantaneous time. That's calculus.

    Don't be afraid. "Calculus" (besides being a formal term for tartar the dentist scrapes off your teeth) means small stones in Latin... small stones as used for counting.

    Two *great* books on the subject:

    • Sylvanus P. Thompson's 1910 classic Calculus Made Easy is still in print and remains as relevent as ever. It's funny ("To Deliver you from the Preliminary Terrors" is the title of the first chapter) and it's full of interesting tidbits. (Do you know where the time units of minutes and seconds got their names?) Hit Amazon.com or Bibliofind to get a copy.
    • Applied Calculus - an Intuitive Approach is great, too. Faber, Freedman and Kaplan. Starts with First Principles and takes you to fairly advanced integration in an easy-to-read format.

    Remember: Do the problems, succeed. Don't do the problems, fail. It's that simple.

    --
    Fire and Meat. Yummy.
  23. Areas of Odd Shapes by BigBlockMopar · · Score: 4, Informative

    How. I understand the area under a graph is the intergral of the formula of the graph, but if you have an everyday shape, chances are its not created by a known mathematical formula. how do you work out the area using calculus?

    Ahh... Now we discover the joy of Infinite Series. Infinite series allows you to do all sorts of things to (arbitrary) precision. (Arbitrary in that it won't spit back an answer to 300 decimal places unless you make the program you write run through the loop 300 times...)

    Basically, here's the idea. You can do a regression of the known points on the graph to come up with a function (formula) to describe the relationship. Regressions come from infinite series, but are used in a plug-and-play format in statistics courses. Also annoyingly, Excel 95 and up includes the capability to do them in the Data Analysis tools, OpenOffice does not yet [grumble grumble]. Anyway, once you have a function, you simply integrate it to find the area.

    My favorite part of all this is that the series usually gives you a nice long sum of little polynomial expressions, which are individually and collectively easy to integrate.

    Practical applications? Fourier Transforms and Fast Fourier Transforms. They allow you to express any function (audio waveform?) as a sum of different overlapping sinewaves. From there, you can do all the math you want on them. MP3 and Ogg codecs do this.

    --
    Fire and Meat. Yummy.